My DD10 went through the cattiness with her supposed friend last year when they were in the same class because my daughter always made 100s. Fortunately, she left the school. Since skipping she is now in the class with her best friend. She finally asked her if she was mad that she had skipped. Her friend said "Well, at first I was but then I thought that I sort of skipped too (they let her start kindergarten early because she was close to the cutoff and could read) and I remembered how bored you were and I wasn't mad anymore." I hope your daughters make a friend like that.
